The seventh site, San Nicolas (measured by the US Navy with a different system) has not yet been finalized due to the complicated output format of the data.

You can download the data from the following anonymous ftp site:
ftp.cmdl.noaa.gov
The data are under the following directory: /ozwv/ozone/CalNex2010

There are separate folders containing the high vertical resolution output, 100m output and 250 m output. Given the 20 second response time of the instruments, there is no advantage to having the ozone data at the high vertical resolution; 100m resolution is about as good as it gets.